On Thu 30-10-14 19:24:37, Ted Tso wrote: > On Thu, Oct 30, 2014 at 10:11:26PM +0100, Thomas Gleixner wrote: > > > > That's a way better explanation than what I saw in the commit logs and > > it actually maps to the observed traces and stackdumps. > > I can't speak for Jan, but I suspect he didn't realize that there was > a problem. The commit description in b34090e5e2 makes it clear that > the intent was a performance improvement, and not an attempt to fix a > potential deadlock bug. Yeah, correct. When I wrote b34090e5e2 I did that because I have realized that journal reservations would create similar deadlock opportunity as Chris has observed. I hadn't realized the problem is already in the code :) Honza -- Jan Kara <jack@xxxxxxx> SUSE Labs, CR -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html